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IMCA safety flashes disseminate important information on incidents and potential hazards and the lessons learnt from them that can help prevent incidents occurring elsewhere in the industry.

Individual safety events are available individually online, tagged and searchable, while the traditional PDF collections are also available for download.

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All members are encouraged to contribute relevant safety-related information – please visit our Safety Flash Reporting page for details on the submission process.

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Nicholas Hough
Technical Adviser - HSSE and Offshore Survey
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Electrical installation onboard ships

A contractor member has reported that they have experienced a number of potentially serious incidents involving electric shocks to personnel working on what was thought to be isolated electrical machinery […]

| Included in IMCA Safety Flash 03/98

FPSO experienced loss of stability while discharging cargo

During a cargo transfer to a shuttle tanker, an FPSO suffered a loss of stability such that the vessel’s metacentric height was reduced well below that required by the installation’s […]

| Included in IMCA Safety Flash 03/98

Fatal accident involving a boom crane

A recent incident has been reported to IMCA. The 350T/96m long boom of a derrick lay barge (DLB) 2500 short tonne revolving crane broke, crashed onto the deck, fell into […]

| Included in IMCA Safety Flash 03/98

Parted green pin plate lifting clamps

An incident occurred during the loading of a plate girder (weight approximately 12 tonnes) onto a cargo barge. As the girder was being lowered two out of the four certified […]

| Included in IMCA Safety Flash 03/98

Crane wire failure

A member has alerted IMCA of a failure of a crane wire during the recovery of an ROV. As the ROV was being swung inboard by the ROV system, the […]

| Included in IMCA Safety Flash 03/98

Slewing, storage and securing of gas quads and ships

A contractor member has reported several near misses/incidents due to the positioning of quads, resulting in damage to regulator boxes and pillar valves. In order to address these incidents, the […]

| Included in IMCA Safety Flash 02/98

Contamination of divers air supply

An incident occurred on a DSV where a diver’s air supply became contaminated with fumes from an overheated electrical compound. This caused the diver to fall unconscious in the water. […]

| Included in IMCA Safety Flash 02/98


Man killed by falling ROV equipment on a drill rig

A member has alerted IMCA to a fatal accident on a Drilling Rig. The accident involved an individual who was assisting to move a ROV hydraulic power pack, weighing 6,000 […]

| Included in IMCA Safety Flash 02/98

Electrical power supply to ROV equipment

When wiring up the trailing lead of a piece of ROV equipment to a junction box on the ship’s electrical supply, an electrician incorrectly identified the trailing lead wires and […]

| Included in IMCA Safety Flash 02/98

Electrical integrity of an ROV

During a vessel ROV mobilisation in port, a subcontractor’s 3-phase hydraulic power unit was connected to the vessel’s power supply. The unit was energised without either inspecting the third party […]

| Included in IMCA Safety Flash 01/98

Crawler crane drive chains

Recently a serious accident occurred at a contractor’s facility when the drive chain of a crawler crane failed, causing parts to fly about injuring an employee. The American Skyhorse Crane […]

| Included in IMCA Safety Flash 01/98


ROV incident

During routine maintenance on a Slingsby TA9 seven function manipulator jaw assembly, while removing the finger retaining bolts, a bolt with 80% of the thread exposed as it was being […]

| Included in IMCA Safety Flash 01/98

Cable handling incident

A technician was knocked unconscious when he was struck on the head by a cable. The incident occurred when cable being used to pull the beginning of a 23″ pipeline […]

| Included in IMCA Safety Flash 01/98

Dive Dynamics AH3 diving helmet

Set out below is a safety notice issued at the end of 1997 by UWI Circle Ltd of Aberdeen, UK. It should be self explanatory, but if you have any […]

| Included in IMCA Safety Flash 01/98

Anchor handling incident

An incident occurred on a vessel which was conducting an anchor handling operation. A sudden tensioning and de-tensioning of the tugger wire occurred, probably due to the vessel rising or […]

| Included in IMCA Safety Flash 03/97

Fire

A fire occurred when paint ignited in a bulk storage area on a vessel due to welding being carried out on the main deck. The firewatcher for the area had […]

| Included in IMCA Safety Flash 03/97

Container incidents

Three separate incidents have been reported involving container double and personnel doors. A control van personnel door fell off whilst someone was trying to open it; fortunately the individual jumped […]

| Included in IMCA Safety Flash 03/97

Explosion during removal of old resin plugs

A near miss incident recently occurred when there was an explosion of the resin/wire plug in a Wirelock ROV umbilical lifting/docking cone. Heat, applied using an oxy acetylene torch to […]

| Included in IMCA Safety Flash 03/97

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